Air-conditioning appliance



March l9w1929f, c. A. MOQRE AR CONDITIONING APPLIANCE Filed Aug. 50,1924 Patented Mar.ll19, 1929'. y y UNITED I' STATES l .1,105,531 PATENTOFFICE.

CHARLES A. MOORE, F ST. PAUL, MINNESOTA.

Application meld vAugust 30, 1924. Serial No, 735,056.

^ Myinvention relates to improvements in air conditioning appliances andhas forI an object thereof to supply a simple, durable and eicientdeviceadapted toventilate a chamber, also to heat and .wash the incomingfreshening air and, further, to charge sa-id freshening air withmoisture- Y With the fore oing'and ether. objects in View,I which wil'appear in the following description, the invention resides in the novelcombination and arrangement of parts and in the details of constructionhereinafter described and claimed. f

In the drawing, the single .view illustrates, in vertical section, a'device embodying my invention, the same being shown as installed in achamber.

Referring to the drawing, it will be observed that the structure formedby the Hoor- 10, lwalls 1l and ceiling 12 encloses a cham ber A. Withinthis chamber A is installed an appliance embodying my invention. Saidappliance includes means for supplying fresh air to the chamberA' 1n wased,

humidified and heated condit1on, also separate means providing for ytheegress of air from said chambers. Said latter means includes an uprightduct .B opening at the bottom thereof at a level near the floor '103'and o ening atthe top thereof at a level near t e ceiling 12. Dampers13, 14 respectively fitted within the upper and lower ends .of the` ductB provide for regulating the egress of air from the chamber A throughsaid duct B and an outlet pipe 15 joining said duct B at a point betweensaid dampers 13, 14, said pipe 15 being extended upward through theceiling 12 into the outer air.

The means' for introducing air to the chamber A includes an upright.duct C comprising an upper portion c', preferably a metallic i e,supported by leds 16, anda lower bell-like portion o? of fabric.v Saidlower duct portion c2 comprises a split holder-ring 17, `a fabric top 18apertured centrally thereof, and a-fabric skirt'19 depending from themargin of the top 18, said top being bound at its margin to the ring 17.Said ring -17 provides for detachably securing said lower ductportion c2to said upper duct portion c', an internal annular groove 20 bein formedat the lower margin of said latter uct portion to receive said ring.Located beneath the duct C and between the legs 16 is a pan 21 forwater. The skirt 19, dipping into the water contained in the pan 21, yiskept moist through'absorption and supplies moisture to the absorbent top18." An air ingress pipe 22 entering the chamber A through the Wall 11and the -lduct C through the side of the upper duct section c isprovided within the duct C with two vbranches 23, 24 respectivelyfitted', with dempers 25, 26, thebranch 23 extending upwardly in theduct C and the branch 24 downwardly therein. Said latter branch 24,reaching throughzthe central aperture in the top member '18, of thelower duct portion o2, opens downward upon and close to the surface ofthe water in the pan 21.

Electrical heater elements 27 of conventional design-are suitablysecured inside of the upper duct portion c.

In use, a damper 28 in :the ingresspipe 22 and a damper 29 at the lupperend of the upper duct portion c are opened more or less to regulate theingress of air into the chamber A. So also is the upper damper 13 inlthe duct B, or .the lower damper 14 therein, or both, opened toregulate the egress of air from the chamber A as desired. With saiddampers suitably adjusted and the heater elements4 27 in operation, airis drawn through the ingress pipe v22 into the duct C where it is heatedby the elements 27 and buoyed upwardly and out of the duct portion@"into 'the chamber A at the ceiling thereof. [Displaced by the incomingfresh.

air," the older air'inthe chamber A has egress therefrom through theduct B and t e to the duct C through the pipe 22, the user, bymanipulating the dampers 25, 26, can cause all 'of the incoming'. air topass down the -branch pipe 24, or cause all of said air to pass up t theflow osaid air through said two branch pipes 23, 24.A The air fedupwardly into the upper duct portionc is merely heated, whichresult maybe desired when the outer atmos here contains a high percentage of humiity. The air fed downwardly in the duct C throu h the branch pipe 24flows, first, against t e surface of the water in the pan 21, thencepasses upwardly brushing the inner sides of the saturated skirt 19, andthence passes -u wardly through the saturated top mem er 18, whichcomprises a screen-like diaphragm across the lower end of the ductportion c. Washed and charged with moisture by reason of its cone branchpipe 23, or can divide pipe 15. Upon entry of the fresh'air Y tact withthe water in the pan 21 and with c .-vention as herein disclosed, maybemade i "tion.

the saturated skirt 19 and top member 18,'v

the air, drawn upwardly by the action Vof the heater elements 27, isheated'by said elements in its upward passage through the yduct portion0. In cleaningl deposits of foreign matter from' thev skirt' 19 and-topmemberv 18 the fabric structure formed thereby is removed from the ductportion' c by slightly collapsing the .split 'r1ng`17 and lowering it'from its `grooved seat in the duct portion. 0C., Being flexible, theskirt 19 readily permits of such rem'ovalof said air'washing andmoisture charging structure and, further, without itself being removed,permits of the ready removal ofthe pan 21 for the purpose of cleansingIthe same of sediment. i

Changes in the specific form of 'my inwithin the sco e of what isclaimed withoutdeparting rom the `spiritof my inven# vHaving describedmy invention, what I claim as new and desire` to protect by LettersPatent is;

1.In an appliance of the class described,

'an upright duct, a' diaphragm of fabric horizontally disposed andtraversing tie lower end of said duct, a skirt of fabric de pending fromthe margin of -saiddiaphragm, a bath in which said skirt dips, aningress pipe leading into said duct and formed with two valved branches,one opening upwardly into the duct andthe other downwardly through thev.diaphragm and .over the said bath, and means for inducing an upwardi'iow of. air in the duct. l

` 2; In an appliance of the class described, an upright ductcomprising'av stationary upper portion and a lower portion vdetachable' from vsaidupper portion and consisting,r v

of a bell-like structure of fabric, the top of Vsaid fabric structure'forming a diaphragm at ythe lower end of said upper duct portion,

an air-ingress pipe leading into the upper o said duct and openingdownward Portion into said fabric structure through said diaphragm', abath' in Awhich the skirt of said structuredips, and means within theupper 'duct' portion for inducing'an upwardv lowof air therein.

3. The combination with a structure .forming a-chamber, of an airingresspipe andan upright duct comprising an upper pipe portion andalower bell-like' element of fabric, said ingress pipe reaching inward-.ly through said upper pipe portion and ex-w tending downward throughthe top ofsaid `bell-like member, albath 'in which the skirt pfr sa1dbell-like member dips,and meansassociated' with the upper pipe portionof said duct for inducing 'an upward'iow of l'air therein.

4. In yan appliance of the class described, an .upright duct, `adiaphragm of -fab'ric horizontally' disposed and traversing the lowerend of 4said ducha skirt of fabric.

depending from said diaphragm, a bath'in f which said skirt dips, aningress pipe leading into said duct downwardly through `said diaphragmand opening over said bath, and means for inducing-a flow of airdownwardly in said ingress pipe, thence in a reverse turn over thesurface of the bath,

rv-the'lice' upwardly through the diaphragm between pipe and duct andthence upwardly through said duct.

In testimony whereof, 'I have signed my -'name to this specification. ti l CHARLES A. MOORE.

